General Rutile Information
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Chemical Formula: |
TiO2 |
Composition: |
Molecular Weight = 79.88 gm |
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Titanium 59.94 % Ti 100.00 % TiO2 |
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Oxygen 40.06 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
TiO2 |
Environment: |
High pressure and temperature accessory mineral in ignous rocks. Common detrital mineral. |
IMA Status: |
Valid Species (Pre-IMA) 1803 |
Locality: |
Binnental and Campolungo, Switzerland. Link to MinDat.org Location Data. |
Name Origin: |
From the Latin, rutilus - "reddish." |
Synonym: |
ICSD 62677 |
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PDF 16-934 |
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Sagenite - reticulated |
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Rutile Image |
Images:
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Images:
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Rutile Hematite
Comments: Acicular, golden yellow crystals of rutile epitaxially overgrown on black crystals of hematite. The overgrowths are perpendicular to the trigonal crystallography of the hematite.
Location: Novo Horizonte, Bahia Brazil.
Scale: 4 x 3.5 x 3 cm.
© Fabre Minerals |
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Rutile Crystallography
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Axial Ratios: |
a:c = 1:0.64388 |
Cell Dimensions: |
a = 4.594, c = 2.958, Z = 2; V = 62.43 Den(Calc)= 4.25 |
Crystal System: |
Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4/mnm |
X Ray Diffraction: |
By Intensity(I/Io): 3.245(1), 1.687(0.5), 2.489(0.41), |
Forms:
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Crystal Structure:
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Wyckoff R W G , Crystal Structures , 1 (1963) p.239-444, Second edition. Interscience Publishers, New York, New York
View Additional jPOWD Structure files for Rutile
[1]
[2]
[3]
[4]
[5]
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[8]
[9]
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Physical Properties of Rutile
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Cleavage: |
[110] Distinct |
Color: |
Blood red, Bluish, Brownish yellow, Brown red, Violet. |
Density: |
4.25 |
Diaphaniety: |
Transparent to translucent to opaque |
Fracture: |
Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern. |
Habit: |
Acicular - Occurs as needle-like crystals. |
Habit: |
Massive - Granular - Common texture observed in granite and other igneous rock. |
Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
Hardness: |
6-6.5 - Orthoclase-Pyrite |
Luminescence: |
None. |
Luster: |
Adamantine |
Streak: |
grayish black |
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Optical Properties of Rutile
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Dichroism (e): |
red or yellow. |
Dichroism (w): |
brown or green. |
Gladstone-Dale: |
CI meas= -0.053 (Good) - where the CI = (1-KPDmeas/KC) CI calc= -0.053 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.4137,KPDmeas= 0.4137,KC= 0.393 |
Optical Data: |
Uniaxial (+), w=2.605-2.621, e=2.899-2.908, bire=0.2870-0.2940. |
RL Anisotrophism: |
Strong. |
RL Color: |
Gray with bluish tint. |
Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Rutile in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
23.70 |
27.00 |

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| 420 nm |
23.20 |
26.50 |

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| 440 nm |
22.70 |
26.00 |

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| 460 nm |
22.20 |
25.50 |

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| 480 nm |
21.70 |
25.10 |

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| 500 nm |
21.30 |
24.70 |

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| 520 nm |
20.90 |
24.30 |

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| 540 nm |
20.60 |
24.00 |

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| 560 nm |
20.20 |
23.60 |

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| 580 nm |
20.00 |
23.40 |

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| 600 nm |
19.70 |
23.10 |

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| 620 nm |
19.50 |
22.90 |

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| 640 nm |
19.20 |
22.80 |

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| 660 nm |
19.10 |
22.60 |

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| 680 nm |
19.00 |
22.50 |

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| 700 nm |
18.90 |
22.50 |

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Calculated Relative Intensity Colors of Rutile in Air
Relative Intensity |
0% |
50% |
100% |
150% |
200% |
250% |
300% |
350% |
400% |
440% |
| R1 |
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| R2 |
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Calculated Properties of Rutile
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Electron Density: |
relectron=4.04 gm/cc note: rRutile =4.25 gm/cc. |
Fermion Index |
Fermion Index = 0.07769 Boson Index = 0.92231 |
Photoelectric: |
PERutile = 10.03 barns/electron U=PERutile x relectron= 40.58 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Rutile is Not Radioactive |
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Rutile Classification
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Dana Class: |
4.4.1.1 (4)Simple Oxides |
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(4.4)with a cation charge of 4+ (A++++ O2) |
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(4.4.1)Rutile group (Tetragonal: P4/mnm) |
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4.4.1.1 Rutile TiO2 P 4/mnm 4/m 2/m 2/m |
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4.4.1.2 Ilmenorutile (Ti,Nb,Fe)O2 P 4/mnm 4/m 2/m 2/m |
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4.4.1.3 Struverite (Ti,Ta,Fe)O2 P 4/mnm 4/m 2/m 2/m |
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4.4.1.4 Pyrolusite MnO2 P 4/mnm 4/m 2/m 2/m |
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4.4.1.5 Cassiterite SnO2 P 4/mnm 4/m 2/m 2/m |
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4.4.1.6 Plattnerite PbO2 P 4/mnm 4/m 2/m 2/m |
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4.4.1.7 Argutite GeO2 P 4/mnm 4/m 2/m 2/m |
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4.4.1.8 Squawcreekite? (Fe,Sb,W)O4·(H2O) P 4/mnm 4/m 2/m 2/m |
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4.4.1.9 Stishovite SiO2 P 4/mnm 4/m 2/m 2/m |
Strunz Class: |
IV/D.02-10 IV - Oxides |
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IV/D - Oxides with metal : oxygen = 1:2 (MO2 and related compounds) |
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IV/D.02 - Rutile group, Rutile - Cassiterite - Platnerite series |
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IV/D.02-10 Rutile TiO2 P 4/mnm 4/m 2/m 2/m |
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IV/D.02-20 Pyrolusite MnO2 P 4/mnm 4/m 2/m 2/m |
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IV/D.02-30 Squawcreekite? (Fe,Sb,W)O4·(H2O) P 4/mnm 4/m 2/m 2/m |
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IV/D.02-40 Cassiterite SnO2 P 4/mnm 4/m 2/m 2/m |
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IV/D.02-45 Argutite GeO2 P 4/mnm 4/m 2/m 2/m |
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IV/D.02-50 Paratellurite TeO2 P 41212,P 43212 4 2 2 |
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IV/D.02-60 Plattnerite PbO2 P 4/mnm 4/m 2/m 2/m |
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Other Rutile Information
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References: |
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3) |
See Also: |
Links to other databases for Rutile :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 -Am. Min. Crystal Structure Database
4 - Amethyst Galleries' Mineral Gallery
5 - Applied Mineralogy
6 -Athena
7 - CalTech Mineral Spectroscopy
8 - Crocoite.com Mineral Locations
9 - EUROmin Project
10 - Franklin Minerals(Dunn)
11 - Franklin Minerals(Palache)
12 - Glendale Community College
13 -Google Images
14 -Google Scholar
15 -Handbook of Mineralogy (UofA)
16 - HyperPhysics
17 -MinDAT
18 -MinMax(Deutsch)
19 -MinMax(English)
20 -Mineralienatlas (Deutsch)
21 - Minerals of Wisconsin
22 - Philatelic Mineralogy
23 -QUT Mineral Atlas
24 - Scandinavian mineral gallery
25 - Tradeshop.com - The Rainbow of Gems
26 - UCLA - Petrography Thin-Sections
27 -University of Colorado - Mineral Structure Data
28 -University of Colorado - Mineral Structure Data
29 - University of Manchester - Mineral Structure
30 -University of Minnesota
31 - WWW-MINCRYST
32 - YupRocks
33 -theimage
34 -École des Mines de Paris
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Print or Cut-and-Paste your Rutile Specimen Label here :
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Rutile
TiO2
Dana No: 4.4.1.1 Strunz No: IV/D.02-10
Locality:
Notes:
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